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Acetyl chloride → Methyl [(3S)-2-[2-acetylhydrazino]-5-(4-chlorophenyl)-7-(methyloxy)-3H-1,4-benzodiazepin-3-yl]acetate

HRID 570173
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HRID 570173 반응식
[CH3:1][O:2][C:3](=[O:26])[CH2:4][C@@H:5]1[N:11]=[C:10]([C:12]2[CH:17]=[CH:16][C:15]([Cl:18])=[CH:14][CH:13]=2)[C:9]2[CH:19]=[C:20]([O:23][CH3:24])[CH:21]=[CH:22][C:8]=2[NH:7][C:6]1=S.O.[NH2:28][NH2:29].CCN(CC)CC.[C:37](Cl)(=[O:39])[CH3:38]>C1COCC1>[CH3:1][O:2][C:3](=[O:26])[CH2:4][C@@H:5]1[N:11]=[C:10]([C:12]2[CH:17]=[CH:16][C:15]([Cl:18])=[CH:14][CH:13]=2)[C:9]2[CH:19]=[C:20]([O:23][CH3:24])[CH:21]=[CH:22][C:8]=2[N:7]=[C:6]1[NH:28][NH:29][C:37](=[O:39])[CH3:38]
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참가 물질

6

반응물 4

HCID 6367Acetyl chlorideHCID 8471TriethylamineHCID 24654Hydrazine hydrate (1:1)HCID 57465560Methyl [(3S)-5-(4-chlorophenyl)-7-(methyloxy)-2-thioxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]acetate

생성물 1

HCID 57465559Methyl [(3S)-2-[2-acetylhydrazino]-5-(4-chlorophenyl)-7-(methyloxy)-3H-1,4-benzodiazepin-3-yl]acetate수율 98%

시약·촉매·용매

1
HCID 8028Tetrahydrofuran용매

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온도
0 °C

실험 절차

To a suspension of Methyl[(3S)-5-(4-chlorophenyl)-7-(methyloxy)-2-thioxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]acetate (for a preparation see Reference compound E (9.0 g, 23.2 mmol) in THF (300 mL) at 0° C. was added hydrazine monohydrate (3.4 mL, 69.6 mmol) dropwise. The reaction mixture was stirred for 5 h between 5° C. and 15° C. before being cooled at 0° C. Et3N (9.7 mL, 69.6 mmol) was then added slowly and acetyl chloride (7.95 mL, 69.6 mmol) was added dropwise. The mixture was then allowed to warm to room temperature for 16 h before being concentrated under reduced pressure. The crude product was dissolved in DCM and washed with water. The organic layer was dried over Na2SO4, filtered and concentrated in vacuo to give the crude title compound (9.7 g, 98% yield) which was used without further purification. Rf=0.49 (DCM/MeOH: 90/10).

후처리

  1. customat 0° C.
  2. temperatureto warm to room temperature for 16 h
  3. concentrationbefore being concentrated under reduced pressure
  4. dissolutionThe crude product was dissolved in DCM
  5. washwashed with water
  6. dry with materialThe organic layer was dried over Na2SO4
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-4f8b8560ae6d4c9c82ffa327786b955f
출처 데이터셋
uspto-grants-2015_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09023842B2

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